Description:The Journal of Vertebrate Paleontology (JVP) publishes original contributions
on all aspects of vertebrate paleontology, including biostratigraphy, evolution,
functional morphology, ichnology, paleoanthropology, paleobiogeography, paleoecology,
phylogeny, systematics, taphonomy, and vertebrate origins. JVP has been published
since 1984 by the Society of Vertebrate Paleontology (SVP). The journal was
founded in 1980 by Dr. Jiri Zidek at the University of Oklahoma. A subscription
to the printed edition of JVP and its supplements (occasional SVP Memoirs and
the annual Program and Abstracts volume) is included with regular and student
membership in SVP (www.vertpaleo.org)

The "moving wall" represents the time period between the last issue
available in JSTOR and the most recently published issue of a journal.
Moving walls are generally represented in years. In rare instances, a
publisher has elected to have a "zero" moving wall, so their current
issues are available in JSTOR shortly after publication.
Note: In calculating the moving wall, the current year is not counted.
For example, if the current year is 2008 and a journal has a 5 year
moving wall, articles from the year 2002 are available.

Terms Related to the Moving Wall

Fixed walls: Journals with no new volumes being added to the archive.

Absorbed: Journals that are combined with another title.

Complete: Journals that are no longer published or that have been
combined with another title.

Abstract

An exceptionally well preserved specimen of the tyrannosaurid dinosaur Tyrannosaurus rex Osborn shows little evidence of permineralization or other diagenetic effects. It appears that the cancellous bone tissues of the specimen may have been protected from water infiltration or mineral deposition by the very dense cortical bone which surrounds them. The cancellous tissues provided an opportunity to test the hypothesis that indigenous biomolecules might be preserved over the course of millions of years under the appropriate conditions. HPLC analysis of extracts from the bone tissues revealed the presence of molecules with light absorbance maxima consistent with nucleic acids and peptides/proteins. Analyses of bone extracts for amino acid content yielded ratios similar to those found for modern ostrich and horse bone. A high molar glycine ratio and the presence of hydroxylysine peaks in bony tissue samples from the T. rex suggests the presence of collagen type I remnants. Results indicate that the analyzed tissue contains numerous biomolecules. While some of the biomolecules are most likely contaminants, the probable presence of collagen type I suggests that some molecules of dinosaurian origin remain in these tissues.